fix(RELEASE-1): task push-snapshot not reading json properly (#399)

This commit fixes the read command that sets the arch_json var.

Signed-off-by: Leandro Mendes <[email protected]>

tasks/push-snapshot/README.md

@@ -10,6 +10,10 @@ Tekton task to push snapshot images to an image registry using `cosign copy`.
 | dataPath           | Path to the JSON string of the merged data to use in the data workspace   | Yes      | data.json            |
 | retries            | Retry copy N times                                                        | Yes      | 0                    |
 
+## Changes in 4.1.2
+* Fixed bug that causes `arch_json` to be empty after setting it
+* Update release-service-utils image
+
 ## Changes in 4.1.1
 * Absorb change in refactored get-image-architectures script
 

tasks/push-snapshot/push-snapshot.yaml

@@ -4,7 +4,7 @@ kind: Task
 metadata:
   name: push-snapshot
   labels:
-    app.kubernetes.io/version: "4.1.1"
+    app.kubernetes.io/version: "4.1.2"
   annotations:
     tekton.dev/pipelines.minVersion: "0.12.1"
     tekton.dev/tags: release
@@ -35,7 +35,7 @@ spec:
       description: The workspace where the snapshot spec and data json files reside
   steps:
     - name: push-snapshot
-      image: quay.io/redhat-appstudio/release-service-utils:b3059c67d4bdb6c9cf1739fdfb2c0cb595fe0f86
+      image: quay.io/redhat-appstudio/release-service-utils:6835e64a1811b30c8a48816ab6e2076cc4963759
       script: |
         #!/usr/bin/env bash
         set -eux
@@ -98,7 +98,7 @@ spec:
           repository=$(jq -r '.repository' <<< $component)
 
           # Just read the first from the list of architectures
-          get-image-architectures "${containerImage}" | read -r arch_json
+          read -r arch_json <<< $(get-image-architectures "${containerImage}")
           arch=$(echo "${arch_json}" | jq -r .platform.architecture)
 
           name=$(jq -r '.name' <<< $component)